structural steel challenge : parabuild for 3d steel structure - deliverables Published 4 years ago • 671 plays • Length 18:22 Download video MP4 Download video MP3 Similar videos 24:26 structural steel challenge : parabuild for 3d steel structure modelling 11:10 04 - structural steel challenge - project steel assembly 10:21 03 - structural steel challenge - project simple piperack